Bay gardeners have been warned to protect themselves from Legionnaires' disease this spring.
There have already been 15 cases of legionellosis or Legionnaires' disease - a serious illness that can require hospital treatment - reported in the Bay this year, according to Toi Te Ora Public Health.
Last year there were 25 total and 21 in 2015.
Infections are usually caused by inhaling dust from compost and potting mixes containing the bacteria that cause the disease.
Medical Officer of Health Dr Jim Miller said gardeners could take simple steps when working with compost or potting mix to reduce their risk of getting the disease.